Futaba 4PMP-F24U1DX 4PM Single Transmitter. The Futaba 4PM Plus 4-Channel 2.4GHz T-FHSS Radio System brings great advancements to the 4PM platform. Features: T-FHSS SR (SUPER RESPONSE) AND TELEMETRY T-FHSS: In addition to the T-FHSS telemetry system, we added a T-FHSS SR (Super Response) system that increased processing speed to further improve response. SR system does […]